14 best autolite iridium spark plugs

Autolite Iridium spark plugs are high-performance spark plugs designed for use in automotive engines. These spark plugs are part of Autolite's product line and are known for their durability and improved ignition performance. Here's what you need to know about Autolite Iridium spark plugs:

  1. Material: Autolite Iridium spark plugs are named for the material used in the center electrode.Iridium is a precious metal known for its exceptional durability and resistance to wear. The use of iridium in the spark plug's center electrode ensures a longer lifespan compared to traditional copper or platinum spark plugs.

  2. Improved Ignition: The use of iridium in the spark plug's electrode provides a sharp, focused spark that improves ignition performance. This can lead to better engine combustion, which in turn can result in improved fuel efficiency and reduced emissions.

  3. Longevity: One of the key advantages of Autolite Iridium spark plugs is their long service life. Iridium is highly resistant to electrode erosion and wear, meaning these spark plugs can often go for tens of thousands of miles before needing replacement.

  4. Compatibility: Autolite Iridium spark plugs are designed to fit a wide range of vehicle makes and models. They are available in various heat ranges and sizes to match the specific requirements of different engines.

  5. Maintenance: While Autolite Iridium spark plugs have an extended service life compared to conventional plugs, they still require periodic inspection and replacement according to the manufacturer's recommendations. Regular maintenance helps ensure consistent engine performance.

  6. Compatibility with Modern Engines: These spark plugs are suitable for use in modern, computer-controlled engines and can help maintain the precision and reliability of such engines.

  7. Installation: Proper installation is crucial for optimal spark plug performance. It's essential to follow the manufacturer's torque specifications and gap settings when installing Autolite Iridium spark plugs.

  8. Engine Benefits: When properly installed and maintained, Autolite Iridium spark plugs can contribute to smoother engine operation, better fuel economy, reduced emissions, and improved throttle response.

  9. Cost: Autolite Iridium spark plugs are typically more expensive than traditional copper or platinum spark plugs due to the use of iridium in the electrode. However, their longer service life can offset the initial higher cost over time.

Overall, Autolite Iridium spark plugs are a reliable choice for vehicle owners looking to enhance their engine's performance and longevity. As with any automotive component, it's essential to consult your vehicle's owner's manual and follow the manufacturer's recommendations for spark plug replacement intervals and specifications to ensure optimal engine performance.

Below you can find our editor's choice of the best autolite iridium spark plugs on the market
  

Autolite XP3923-4PK Iridium XP Spark Plug, Pack of 4

Autolite

Based on 171 reviews Check latest price

Product description

Autolite Iridium XP utilizes an iridium-enhanced 0.6 mm finewire and proprietary platinum sidewire for improved durability and a more focused ignition for better overall ignitability providing optimum performance.

  • Iridium-enhanced platinum alloy 0.6mm fine wire center electrode for improved ignitibility performance
  • Patented V-trimmed platinum side wire technology resists wear
  • OE equivalent design is engineered for every engine to ensure the right plug for your vehicle
  • Designed for better overall durability with virtually no gap erosion for longer plug life
  • Attached motor seat gasket and terminal nut
  • Fit type: Vehicle Specific

User questions & answers

Question: Will this fits 2006 Scion tC
Answer: Yes XP3923 is the correct part number for the 2006 Scion TC.
Question: will this fit a 2007 chevorlet aveo 4 cly
Answer: Best to check with www.rockauto.com
Question: Where are these made
Answer: It has been along time since I purchased and I really don't remember.
Question: Will these spark plugs fit 2003 Altima
Answer: Hello, no these will not fit a Altima. Ngk are the original part number 6240. Please let us know if we can be of further assistance.

Autolite XP5683-4PK Iridium XP Spark Plug, Pack of 4, White

Autolite

Based on 93 reviews Check latest price

Product description

Autolite Iridium XP utilizes an iridium-enhanced 0.6 mm finewire and proprietary platinum sidewire for improved durability and a more focused ignition for better overall ignitability providing optimum performance.

  • Iridium-enhanced platinum alloy 0.6mm fine wire center electrode for improved ignitibility performance
  • Patented V-trimmed platinum side wire technology resists wear
  • OE equivalent design is engineered for every engine to ensure the right plug for your vehicle
  • Designed for better overall durability with virtually no gap erosion for longer plug life
  • Attached motor seat gasket and terminal nut
  • Fit type: Vehicle Specific

User questions & answers

Question: do these need to be spaced? or the right measurement
Answer: They should be gapped properly. However, you should always check the Gap. You don't know if they might have been dropped at some point.
Question: Does this fit 2017 Subaru Outback 2.5i
Answer: Stephen, Yes your 2017 Outback w/2.5L engine can use the XP5683 Autolite plugs. I hope you have a great day!
Question: Does this fit 2013 ford 3.5 ecoboost
Answer: No this is not the correct spark plug for any of the Ford eco boost engines. I would need the year, make, model, and engine size to provide you with the correct spark plugs for your application.
Question: This plug good 2013 altima
Answer: Very good for this car

Autolite XS4302-4PK Xtreme Sport Iridium Powersports Spark Plug, Pack of 4

Based on 84 reviews Check latest price

Product description

Xtreme Sport Spark Plug

  • Fit Type: Vehicle Specific
  • Package Dimensions: 2.54 H x 8.382 L x 2.794 W (centimetres)
  • Country of Origin : Mexico
  • Package Weight: 0.1 pounds

User questions & answers

Question: Will the fit my 2006 zx10r
Answer: The XS4302 will fit the 2006 Kawasaki ZX10R.
Question: I have a 2005 cbr600rr will it fit and work great
Answer: Yes these are the correct plugs listed for the 2005 CBR600RR. These need to be gapped at .035.

Autolite XP5702-4PK Iridium XP Spark Plug, Pack of 4

Autolite

Based on 78 reviews Check latest price

Product description

Autolite Iridium XP utilizes an iridium-enhanced 0.6 mm finewire and proprietary platinum sidewire for improved durability and a more focused ignition for better overall ignitability providing optimum performance.

  • Iridium-enhanced platinum alloy 0.6mm fine wire center electrode for improved ignitibility performance
  • Patented V-trimmed platinum side wire technology resists wear
  • OE equivalent design is engineered for every engine to ensure the right plug for your vehicle
  • Designed for better overall durability with virtually no gap erosion for longer plug life
  • Attached motor seat gasket and terminal nut
  • Fit type: Vehicle Specific

User questions & answers

Question: I bought 2 of autolite xp5702-4pk iridium xp spark plug, pack of 4 , but in 1 box was 4 of xp-25 spark plug what i shud do? i need my money back
Answer: Andrey, For a part that was misboxed they should be returned to point of purchase for a complete refund.

Autolite AP5325-4PK Platinum Spark Plug, 4 Pack

Autolite

Based on 650 reviews Check latest price

Product description

Step up to platinum. A center wire platinum firing tip provides improved performance and durability. They fire quicker and cleaner with less voltage for easier starts, quicker acceleration and improved fuel economy versus standard plugs.

  • Full platinum tip ensures virtually no gap erosion for long plug life
  • Yttrium enhanced, high nickel alloy side electrode maintains precise gap to increase plug life
  • Necked-down center electrode fires quicker and cleaner, with less voltage for easier starts, quicker acceleration, and improved fuel economy
  • Platinum alloy pad on ground electrode provides extended durability and service life and platinum-to-platinum firing
  • Nickel-plated steel shell for long-life corrosion resistance

User questions & answers

Question: Will this work on homda generator
Answer: Goo Morning, Unfortunately the Autolite AP5325 does not show to work with your application. If you can please send back a reply, giving us the model generator you have we may be able to assist you. I hope you have a great day!
Question: are these ore-gapped to 044"/1.1mm
Answer: .044 or .043. I always recommend getting a gapping tool, even if it's just the cheap little $2 disk from the auto parts store (they usually have them by the cash register) just to make sure, but as I recall I didn't have to adjust them almost at all and my car needs .044 gap.
Question: charger Rt? Will it fit
Answer: I do not know but, follow what is recommended for your car. It may work but it may also cause engine codes to pop up because your are not using what is required.
Question: Do they fit in Honda Fit
Answer: Use the manufacturer website and search for your vehicle.

NGK LKAR7BIX-11S Iridium IX Spark Plug (93501 Iridium Ix), 4 Pack

NGK

Based on 420 reviews Check latest price

Product description

Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior anti fouling. The 0.6 millimeter laser welded fine Iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect. Longer insulator nose prevents fouling, the corrugated ribs on insulator prevent flashover, and a triple gasket seal eliminates combustion gas leakage. Iridium alloy has extremely high melting point, giving it high durability to heat and electrical wear, perfect for today's high performance engines. Trivalent metal plating - superior anti-corrosion and anti-seizing properties.

  • Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling
  • The 0.6 millimeter laser welded fine Iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect
  • Longer insulator nose prevents fouling, the corrugated ribs on insulator prevents flashover, and a triple gasket seal eliminates combustion gas leakage
  • Iridium alloy has extremely high melting point, giving it high durability to heat and electrical wear, perfect for today's high performance engines
  • Trivalent Metal Plating provides superior anti-corrosion and anti-seizing properties

User questions & answers

Question: What is preset gap size? What does that mean for installation? This is my first time replacing spark plugs
Answer: It means that the plug gap is already set for you, and you do not need to adjust it.
Question: what type of plug to be use for my 2013 toyota corolla LE which can last for a year
Answer: Use Iridium plugs. Should last for 100,000 miles. If not, you might have an engine problem.
Question: How many mile can these spark plug last
Answer: The spec sheet says 40,000 to 50,000 miles.
Question: What is the preset gap size
Answer: 0.044”

Autolite XP5863-4PK Iridium XP Spark Plug, 4 Pack

Autolite

Based on 15 reviews Check latest price

Product description

Iridium-enhanced platinum alloy 0. 6mm fine wire center electrode for improved ignitibility performance. Patented V-trimmed platinum side wire technology resists wear. OE equivalent design is engineered for every engine to ensure the right plug for your vehicle. Designed for better overall durability with virtually no gap erosion for longer plug life. Attached motor seat gasket and terminal nut.

  • Item Package Dimension:2.794 cm L X9.144 cm W X10.668 cm H
  • Item Package Weight:0.222 Kilograms
  • Product Type:Spark Plug
  • Country Of Origin: Mexico

Autolite XP985-4PK Iridium XP Spark Plug, Pack of 4

Autolite

Based on 32 reviews Check latest price

Product description

Autolite Iridium XP utilizes an iridium-enhanced 0.6 mm finewire and proprietary platinum sidewire for improved durability and a more focused ignition for better overall ignitability providing optimum performance.

  • Iridium-enhanced platinum alloy 0.6mm fine wire center electrode for improved ignitibility performance
  • Patented V-trimmed platinum side wire technology resists wear
  • OE equivalent design is engineered for every engine to ensure the right plug for your vehicle
  • Designed for better overall durability with virtually no gap erosion for longer plug life
  • Fit type: Vehicle Specific

User questions & answers

Question: Do i need to put anti-seize on these spark plugs
Answer: You should anti-seize regardless off the brand of plug

Autolite XP5263-4PK Iridium XP Spark Plug, Pack of 4

Autolite

Based on 67 reviews Check latest price

Product description

Autolite Iridium XP utilizes an iridium-enhanced 0.6 mm finewire and proprietary platinum sidewire for improved durability and a more focused ignition for better overall ignitability providing optimum performance.

  • Iridium-enhanced platinum alloy 0.6mm fine wire center electrode for improved ignitibility performance
  • Patented V-trimmed platinum side wire technology resists wear
  • OE equivalent design is engineered for every engine to ensure the right plug for your vehicle
  • Designed for better overall durability with virtually no gap erosion for longer plug life
  • Attached motor seat gasket and terminal nut
  • Fit type: Vehicle Specific

User questions & answers

Question: Will it fit a 2015 Chevy equinox
Answer: Yes, XP5263 will fit in both the 2.4L 4 cylinder, and the 3.6L 6 cylinder engines in the 2015 Chevy Equinox.
Question: Are these fake
Answer: Not sure what you mean by fake. I ordered, they came, and they were autolite plugs in OEM packaging. Installed and running for a while now.
Question: Will this plug fit my 06 F150 4.6L
Answer: No
Question: Will this fit on my Chevy 2013 equinox
Answer: If it is a 2.4 liter ectotec, then yes.

Autolite XP6203-4PK Iridium XP Spark Plug, Pack of 4

Autolite

Based on 36 reviews Check latest price

Product description

Autolite Iridium XP utilizes an iridium-enhanced 0.6 mm finewire and proprietary platinum sidewire for improved durability and a more focused ignition for better overall ignitability providing optimum performance.

  • Iridium-enhanced platinum alloy 0.6mm fine wire center electrode for improved ignitibility performance
  • Patented V-trimmed platinum side wire technology resists wear
  • OE equivalent design is engineered for every engine to ensure the right plug for your vehicle
  • Designed for better overall durability with virtually no gap erosion for longer plug life
  • Attached motor seat gasket and terminal nut
  • Fit type: Vehicle Specific

Fram Autolite XP5224-4PK Iridium XP Spark Plug, Pack of 4

Fram

Based on 157 reviews Check latest price

Product description

Autolite Iridium XP utilizes an iridium-enhanced 0.6 mm finewire and proprietary platinum sidewire for improved durability and a more focused ignition for better overall ignitability providing optimum performance.

  • Iridium-enhanced platinum alloy 0.6mm fine wire center electrode for improved ignitibility performance
  • Patented V-trimmed platinum side wire technology resists wear
  • OE equivalent design is engineered for every engine to ensure the right plug for your vehicle
  • Designed for better overall durability with virtually no gap erosion for longer plug life
  • Fit type: Vehicle Specific

User questions & answers

Question: Are these the newer designed spark plugs for Iridum XP version
Answer: yes
Question: Does this xp5224 iridium xp spark plug fit 2006 volvo s60 2.5t
Answer: I don't know. Contact the seller and ask them. They have been in my truck since 2012 and I am still happy with them.
Question: are this spark plugs already pre-gapped
Answer: Autolite says that plugs are pre-gapped but comments from past purchasers seem to say that the plugs arrived with gaps ranging from .045" to .035" so they should be checked and gapped to your vehicle's specifications. Also, be aware that Iridium tips are very brittle and careless gapping can damage them -- suggestion is that you don't use a disc-type gapping tool, instead use a wire type. Hope this helps.
Question: How many spark plug in the package come with
Answer: Yoda says "only one plug per package there is"

Fram Autolite XP5325 Iridium XP Spark Plug, Pack of 4

Fram

Based on 194 reviews Check latest price

Product description

Spark Plug

  • Iridium-enhanced platinum alloy 0.6mm fine wire center electrode for improved ignitibility performance
  • Patented V-trimmed platinum side wire technology resists wear
  • OE equivalent design is engineered for every engine to ensure the right plug for your vehicle
  • Designed for better overall durability with virtually no gap erosion for longer plug life

User questions & answers

Question: Do they come in retail packaging? there is a rebate this year and have to mail in upc’s
Answer: No they come individual boxes not in a 4 pack box
Question: does this fit for 2005 Nissan Sentra
Answer: Yes, both 1.8 and 2.5l engines.
Question: Bought these elsewhere, they are gapped closer to 0.044", even though the spec on their website says 0.032". Anyone else have this problem
Answer: They're supposed to be pre-gapped a 0.044".
Question: Does it come gap for the 2003 Altima
Answer: It's pre gapped, yes.

Autolite 4194-4PK Copper Non-Resistor Spark Plug, Pack of 4

Autolite

Based on 52 reviews Check latest price

Product description

Since 1936, Autolite has been a trusted leader and innovator in spark plug technology. You can count on our copper plugs for performance and value, backed by decades of experience and passion.

  • Copper-glass seal bonds insulator, terminal post, and center electrode together to provide a tight seal that is 100 percent leak-proof
  • Cold-formed steel shell and precision rolled threads, with one-piece terminal post to add strength
  • Multi-rib insulator reduces danger of "flash-over"
  • Resistor reduces radio frequency interference (RFI) and electrode erosion
  • Full copper core electrode provides better performance in all conditions
  • Fit type: Vehicle Specific

User questions & answers

Question: What’s the thread size for this plug? Thanks
Answer: Thread Size: 10mm x 1.0 MM
Question: Will this replace the ngk cmr6h plug
Answer: Good Morning Buddy! Autolite AP103 will be the plug you can use instead of the NGK CMR6H. I hope you have a great day!

Autolite APP5325-4PK Double Platinum Spark Plug, Pack of 4

Autolite

Based on 422 reviews Check latest price

Product description

Autolite double platinum spark plugs are the superior-performing spark plug providing preferred technology for diesel engines. Featuring platinum-to-platinum firing, double platinum spark plugs virtually eliminate gap erosion, reduce misfires, and provide 100k mile durability. Guaranteed for 5 years.

  • Full platinum tips ensure virtually no gap erosion
  • Works to optimize engine performance for a longer life and improved fuel economy
  • Necked-down center electrode fires quicker and cleaner, with less voltage for easier starts and quicker acceleration
  • High nickel alloy side electrode maintains precise gap
  • Full copper core electrode provides better performance in all conditions
  • Fit type: Vehicle Specific

User questions & answers

Question: can i use these in a 2013 lexus IS250 with 2.5 v
Answer: Good Morning Madison! Per our Autolite catalog listings the APP5325 plugs are correct to use in your 2012 IS250. I hope you have a great day!
Question: Does this work with a 2015 jeep Cherokee
Answer: Good Afternoon Megan! If your 2015 Jeep Cherokee has the 2.5L four cylinder engine then yes, the APP5325 is correct, if your Cherokee has the 3.2L 6 cylinder engine then you will need the Autolite APP5701 plugs. I hope this helps you out.
Question: What size socket wrench
Answer: I honestly don’t recall the size. I have several different size spark plug sockets. Specs on it say 5/8” hex size.
Question: Is this item for a quantity of 4 (as shown in the picture), or for just
Answer: I only received 1 although the picture shows 4

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